diff --git a/pkgs/development/python-modules/ical/default.nix b/pkgs/development/python-modules/ical/default.nix
index 3380f34e20ee..912ae70882f3 100644
--- a/pkgs/development/python-modules/ical/default.nix
+++ b/pkgs/development/python-modules/ical/default.nix
@@ -15,14 +15,14 @@
 
 buildPythonPackage rec {
   pname = "ical";
-  version = "11.1.0";
+  version = "12.1.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "allenporter";
     repo = "ical";
     tag = version;
-    hash = "sha256-NpE+YHVgaUBR9MzC+zXwqalCwSjF/f+NH/k0S/JusiI=";
+    hash = "sha256-0qIS6fJsiJoM5FCvwhKoLUqRYQ0TelrtNMKkgtZ8UIU=";
   };
 
   build-system = [ setuptools ];